Bug 2426009 (CVE-2023-54192) - CVE-2023-54192 kernel: f2fs: fix null pointer panic in tracepoint in __replace_atomic_write_block
Summary: CVE-2023-54192 kernel: f2fs: fix null pointer panic in tracepoint in __replac...
Keywords:
Status: NEW
Alias: CVE-2023-54192
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-30 13:01 UTC by OSIDB Bzimport
Modified: 2026-06-29 20:15 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2025-12-30 13:01:43 UTC 
In the Linux kernel, the following vulnerability has been resolved:

f2fs: fix null pointer panic in tracepoint in __replace_atomic_write_block

We got a kernel panic if old_addr is NULL.

https://bugzilla.kernel.org/show_bug.cgi?id=217266

BUG: kernel NULL pointer dereference, address: 0000000000000000
 Call Trace:
  <TASK>
  f2fs_commit_atomic_write+0x619/0x990 [f2fs a1b985b80f5babd6f3ea778384908880812bfa43]
  __f2fs_ioctl+0xd8e/0x4080 [f2fs a1b985b80f5babd6f3ea778384908880812bfa43]
  ? vfs_write+0x2ae/0x3f0
  ? vfs_write+0x2ae/0x3f0
  __x64_sys_ioctl+0x91/0xd0
  do_syscall_64+0x5c/0x90
  entry_SYSCALL_64_after_hwframe+0x72/0xdc
 RIP: 0033:0x7f69095fe53f
Comment 1 Alexander B 2025-12-31 16:03:51 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123027-CVE-2023-54192-f8f5@gregkh/T
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